FreeBSD/Linux Kernel Cross Reference
sys/dev/bktr/bktr_os.c
1 /*-
2 * 1. Redistributions of source code must retain the
3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Amancio Hasty and
17 * Roger Hardiman
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: releng/5.3/sys/dev/bktr/bktr_os.c 130585 2004-06-16 09:47:26Z phk $");
36
37 /*
38 * This is part of the Driver for Video Capture Cards (Frame grabbers)
39 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
40 * chipset.
41 * Copyright Roger Hardiman and Amancio Hasty.
42 *
43 * bktr_os : This has all the Operating System dependant code,
44 * probe/attach and open/close/ioctl/read/mmap
45 * memory allocation
46 * PCI bus interfacing
47 */
48
49 #include "opt_bktr.h" /* include any kernel config options */
50
51 #define FIFO_RISC_DISABLED 0
52 #define ALL_INTS_DISABLED 0
53
54
55 /*******************/
56 /* *** FreeBSD *** */
57 /*******************/
58 #ifdef __FreeBSD__
59
60 #include <sys/param.h>
61 #include <sys/systm.h>
62 #include <sys/conf.h>
63 #include <sys/uio.h>
64 #include <sys/kernel.h>
65 #include <sys/module.h>
66 #include <sys/signalvar.h>
67 #include <sys/malloc.h>
68 #include <sys/mman.h>
69 #include <sys/poll.h>
70 #if __FreeBSD_version >= 500014
71 #include <sys/selinfo.h>
72 #else
73 #include <sys/select.h>
74 #endif
75 #include <sys/vnode.h>
76
77 #include <vm/vm.h>
78 #include <vm/vm_kern.h>
79 #include <vm/pmap.h>
80 #include <vm/vm_extern.h>
81
82 #if (__FreeBSD_version >=400000)
83 #include <sys/bus.h> /* used by smbus and newbus */
84 #endif
85
86 #if (__FreeBSD_version >=300000)
87 #include <machine/bus_memio.h> /* used by bus space */
88 #include <machine/bus.h> /* used by bus space and newbus */
89 #include <sys/bus.h>
90 #endif
91
92 #if (__FreeBSD_version >=400000)
93 #include <sys/rman.h> /* used by newbus */
94 #include <machine/resource.h> /* used by newbus */
95 #endif
96
97 #if (__FreeBSD_version < 500000)
98 #include <machine/clock.h> /* for DELAY */
99 #include <pci/pcivar.h>
100 #include <pci/pcireg.h>
101 #else
102 #include <dev/pci/pcivar.h>
103 #include <dev/pci/pcireg.h>
104 #endif
105
106 #include <sys/sysctl.h>
107 int bt848_card = -1;
108 int bt848_tuner = -1;
109 int bt848_reverse_mute = -1;
110 int bt848_format = -1;
111 int bt848_slow_msp_audio = -1;
112 #ifdef BKTR_NEW_MSP34XX_DRIVER
113 int bt848_stereo_once = 0; /* no continuous stereo monitoring */
114 int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
115 the autoscan seems work well only with FM... */
116 int bt848_dolby = 0;
117 #endif
118
119 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
120 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
121 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
122 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
123 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, "");
124 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, "");
125 #ifdef BKTR_NEW_MSP34XX_DRIVER
126 SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, "");
127 SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, "");
128 SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
129 #endif
130
131 #endif /* end freebsd section */
132
133
134
135 /****************/
136 /* *** BSDI *** */
137 /****************/
138 #ifdef __bsdi__
139 #endif /* __bsdi__ */
140
141
142 /**************************/
143 /* *** OpenBSD/NetBSD *** */
144 /**************************/
145 #if defined(__NetBSD__) || defined(__OpenBSD__)
146
147 #include <sys/param.h>
148 #include <sys/systm.h>
149 #include <sys/conf.h>
150 #include <sys/uio.h>
151 #include <sys/kernel.h>
152 #include <sys/signalvar.h>
153 #include <sys/mman.h>
154 #include <sys/poll.h>
155 #include <sys/select.h>
156 #include <sys/vnode.h>
157
158 #include <vm/vm.h>
159
160 #ifndef __NetBSD__
161 #include <vm/vm_kern.h>
162 #include <vm/pmap.h>
163 #include <vm/vm_extern.h>
164 #endif
165
166 #include <sys/device.h>
167 #include <dev/pci/pcivar.h>
168 #include <dev/pci/pcireg.h>
169 #include <dev/pci/pcidevs.h>
170
171 #define BKTR_DEBUG
172 #ifdef BKTR_DEBUG
173 int bktr_debug = 0;
174 #define DPR(x) (bktr_debug ? printf x : 0)
175 #else
176 #define DPR(x)
177 #endif
178 #endif /* __NetBSD__ || __OpenBSD__ */
179
180
181 #ifdef __NetBSD__
182 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */
183 #include <dev/pci/bktr/bktr_reg.h>
184 #include <dev/pci/bktr/bktr_tuner.h>
185 #include <dev/pci/bktr/bktr_card.h>
186 #include <dev/pci/bktr/bktr_audio.h>
187 #include <dev/pci/bktr/bktr_core.h>
188 #include <dev/pci/bktr/bktr_os.h>
189 #else /* Traditional location for .h files */
190 #include <dev/bktr/ioctl_meteor.h>
191 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
192 #include <dev/bktr/bktr_reg.h>
193 #include <dev/bktr/bktr_tuner.h>
194 #include <dev/bktr/bktr_card.h>
195 #include <dev/bktr/bktr_audio.h>
196 #include <dev/bktr/bktr_core.h>
197 #include <dev/bktr/bktr_os.h>
198
199 #if defined(BKTR_USE_FREEBSD_SMBUS)
200 #include <dev/bktr/bktr_i2c.h>
201
202 #include "iicbb_if.h"
203 #include "smbus_if.h"
204 #endif
205 #endif
206
207
208 /****************************/
209 /* *** FreeBSD 4.x code *** */
210 /****************************/
211 #if (__FreeBSD_version >= 400000)
212
213 static int bktr_probe( device_t dev );
214 static int bktr_attach( device_t dev );
215 static int bktr_detach( device_t dev );
216 static int bktr_shutdown( device_t dev );
217 static void bktr_intr(void *arg) { common_bktr_intr(arg); }
218
219 static device_method_t bktr_methods[] = {
220 /* Device interface */
221 DEVMETHOD(device_probe, bktr_probe),
222 DEVMETHOD(device_attach, bktr_attach),
223 DEVMETHOD(device_detach, bktr_detach),
224 DEVMETHOD(device_shutdown, bktr_shutdown),
225
226 #if defined(BKTR_USE_FREEBSD_SMBUS)
227 /* iicbb interface */
228 DEVMETHOD(iicbb_callback, bti2c_iic_callback),
229 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda),
230 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl),
231 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda),
232 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl),
233 DEVMETHOD(iicbb_reset, bti2c_iic_reset),
234
235 /* smbus interface */
236 DEVMETHOD(smbus_callback, bti2c_smb_callback),
237 DEVMETHOD(smbus_writeb, bti2c_smb_writeb),
238 DEVMETHOD(smbus_writew, bti2c_smb_writew),
239 DEVMETHOD(smbus_readb, bti2c_smb_readb),
240 #endif
241
242 { 0, 0 }
243 };
244
245 static driver_t bktr_driver = {
246 "bktr",
247 bktr_methods,
248 sizeof(struct bktr_softc),
249 };
250
251 static devclass_t bktr_devclass;
252
253 static d_open_t bktr_open;
254 static d_close_t bktr_close;
255 static d_read_t bktr_read;
256 static d_write_t bktr_write;
257 static d_ioctl_t bktr_ioctl;
258 static d_mmap_t bktr_mmap;
259 static d_poll_t bktr_poll;
260
261 static struct cdevsw bktr_cdevsw = {
262 .d_version = D_VERSION,
263 .d_flags = D_NEEDGIANT,
264 .d_open = bktr_open,
265 .d_close = bktr_close,
266 .d_read = bktr_read,
267 .d_write = bktr_write,
268 .d_ioctl = bktr_ioctl,
269 .d_poll = bktr_poll,
270 .d_mmap = bktr_mmap,
271 .d_name = "bktr",
272 };
273
274 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0);
275 #if (__FreeBSD_version > 410000)
276 MODULE_DEPEND(bktr, bktr_mem, 1,1,1);
277 MODULE_VERSION(bktr, 1);
278 #endif
279
280
281 /*
282 * the boot time probe routine.
283 */
284 static int
285 bktr_probe( device_t dev )
286 {
287 unsigned int type = pci_get_devid(dev);
288 unsigned int rev = pci_get_revid(dev);
289
290 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE)
291 {
292 switch (PCI_PRODUCT(type)) {
293 case PCI_PRODUCT_BROOKTREE_BT848:
294 if (rev == 0x12)
295 device_set_desc(dev, "BrookTree 848A");
296 else
297 device_set_desc(dev, "BrookTree 848");
298 return 0;
299 case PCI_PRODUCT_BROOKTREE_BT849:
300 device_set_desc(dev, "BrookTree 849A");
301 return 0;
302 case PCI_PRODUCT_BROOKTREE_BT878:
303 device_set_desc(dev, "BrookTree 878");
304 return 0;
305 case PCI_PRODUCT_BROOKTREE_BT879:
306 device_set_desc(dev, "BrookTree 879");
307 return 0;
308 }
309 };
310
311 return ENXIO;
312 }
313
314
315 /*
316 * the attach routine.
317 */
318 static int
319 bktr_attach( device_t dev )
320 {
321 u_long latency;
322 u_long fun;
323 u_long val;
324 unsigned int rev;
325 unsigned int unit;
326 int error = 0;
327 #ifdef BROOKTREE_IRQ
328 u_long old_irq, new_irq;
329 #endif
330
331 struct bktr_softc *bktr = device_get_softc(dev);
332
333 unit = device_get_unit(dev);
334
335 /* build the device name for bktr_name() */
336 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit);
337
338 /*
339 * Enable bus mastering and Memory Mapped device
340 */
341 val = pci_read_config(dev, PCIR_COMMAND, 4);
342 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
343 pci_write_config(dev, PCIR_COMMAND, val, 4);
344
345 /*
346 * Map control/status registers.
347 */
348 bktr->mem_rid = PCIR_BAR(0);
349 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
350 &bktr->mem_rid, RF_ACTIVE);
351
352 if (!bktr->res_mem) {
353 device_printf(dev, "could not map memory\n");
354 error = ENXIO;
355 goto fail;
356 }
357 bktr->memt = rman_get_bustag(bktr->res_mem);
358 bktr->memh = rman_get_bushandle(bktr->res_mem);
359
360
361 /*
362 * Disable the brooktree device
363 */
364 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
365 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
366
367
368 #ifdef BROOKTREE_IRQ /* from the configuration file */
369 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
370 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
371 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
372 printf("bktr%d: attach: irq changed from %d to %d\n",
373 unit, (old_irq & 0xff), (new_irq & 0xff));
374 #endif
375
376 /*
377 * Allocate our interrupt.
378 */
379 bktr->irq_rid = 0;
380 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
381 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE);
382 if (bktr->res_irq == NULL) {
383 device_printf(dev, "could not map interrupt\n");
384 error = ENXIO;
385 goto fail;
386 }
387
388 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY,
389 bktr_intr, bktr, &bktr->res_ih);
390 if (error) {
391 device_printf(dev, "could not setup irq\n");
392 goto fail;
393
394 }
395
396
397 /* Update the Device Control Register */
398 /* on Bt878 and Bt879 cards */
399 fun = pci_read_config( dev, 0x40, 2);
400 fun = fun | 1; /* Enable writes to the sub-system vendor ID */
401
402 #if defined( BKTR_430_FX_MODE )
403 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
404 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */
405 #endif
406
407 #if defined( BKTR_SIS_VIA_MODE )
408 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
409 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for
410 OPTi chipset motherboards too */
411 #endif
412 pci_write_config(dev, 0x40, fun, 2);
413
414 #if defined(BKTR_USE_FREEBSD_SMBUS)
415 if (bt848_i2c_attach(dev))
416 printf("bktr%d: i2c_attach: can't attach\n", unit);
417 #endif
418
419 /*
420 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
421 * you have more than four, then 16 would probably be a better value.
422 */
423 #ifndef BROOKTREE_DEF_LATENCY_VALUE
424 #define BROOKTREE_DEF_LATENCY_VALUE 10
425 #endif
426 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4);
427 latency = (latency >> 8) & 0xff;
428 if ( bootverbose ) {
429 if (latency)
430 printf("brooktree%d: PCI bus latency is", unit);
431 else
432 printf("brooktree%d: PCI bus latency was 0 changing to",
433 unit);
434 }
435 if ( !latency ) {
436 latency = BROOKTREE_DEF_LATENCY_VALUE;
437 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4);
438 }
439 if ( bootverbose ) {
440 printf(" %d.\n", (int) latency);
441 }
442
443 /* read the pci device id and revision id */
444 fun = pci_get_devid(dev);
445 rev = pci_get_revid(dev);
446
447 /* call the common attach code */
448 common_bktr_attach( bktr, unit, fun, rev );
449
450 /* make the device entries */
451 bktr->bktrdev = make_dev(&bktr_cdevsw, unit,
452 0, 0, 0444, "bktr%d", unit);
453 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16,
454 0, 0, 0444, "tuner%d", unit);
455 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32,
456 0, 0, 0444, "vbi%d" , unit);
457
458
459 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */
460 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */
461 #if (__FreeBSD_version >=500000)
462 if (unit == 0) {
463 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr");
464 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner");
465 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi");
466 }
467 #endif
468
469 return 0;
470
471 fail:
472 if (bktr->res_irq)
473 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
474 if (bktr->res_mem)
475 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem);
476 return error;
477
478 }
479
480 /*
481 * the detach routine.
482 */
483 static int
484 bktr_detach( device_t dev )
485 {
486 struct bktr_softc *bktr = device_get_softc(dev);
487
488 #ifdef BKTR_NEW_MSP34XX_DRIVER
489 /* Disable the soundchip and kernel thread */
490 if (bktr->msp3400c_info != NULL)
491 msp_detach(bktr);
492 #endif
493
494 /* Disable the brooktree device */
495 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
496 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
497
498 #if defined(BKTR_USE_FREEBSD_SMBUS)
499 if (bt848_i2c_detach(dev))
500 printf("bktr%d: i2c_attach: can't attach\n",
501 device_get_unit(dev));
502 #endif
503 #ifdef USE_VBIMUTEX
504 mtx_destroy(&bktr->vbimutex);
505 #endif
506
507 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */
508 /* The memory is retained by the bktr_mem module so we can unload and */
509 /* then reload the main bktr driver module */
510
511 /* Unregister the /dev/bktrN, tunerN and vbiN devices,
512 * the aliases for unit 0 are automatically destroyed */
513 destroy_dev(bktr->vbidev);
514 destroy_dev(bktr->tunerdev);
515 destroy_dev(bktr->bktrdev);
516
517 /*
518 * Deallocate resources.
519 */
520 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih);
521 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq);
522 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem);
523
524 return 0;
525 }
526
527 /*
528 * the shutdown routine.
529 */
530 static int
531 bktr_shutdown( device_t dev )
532 {
533 struct bktr_softc *bktr = device_get_softc(dev);
534
535 /* Disable the brooktree device */
536 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
537 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
538
539 return 0;
540 }
541
542
543 /*
544 * Special Memory Allocation
545 */
546 vm_offset_t
547 get_bktr_mem( int unit, unsigned size )
548 {
549 vm_offset_t addr = 0;
550
551 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
552 0xffffffff, 1<<24, 0);
553 if (addr == 0)
554 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0,
555 0xffffffff, PAGE_SIZE, 0);
556 if (addr == 0) {
557 printf("bktr%d: Unable to allocate %d bytes of memory.\n",
558 unit, size);
559 }
560
561 return( addr );
562 }
563
564
565 /*---------------------------------------------------------
566 **
567 ** BrookTree 848 character device driver routines
568 **
569 **---------------------------------------------------------
570 */
571
572 #define VIDEO_DEV 0x00
573 #define TUNER_DEV 0x01
574 #define VBI_DEV 0x02
575
576 #define UNIT(x) ((x) & 0x0f)
577 #define FUNCTION(x) (x >> 4)
578
579 /*
580 *
581 */
582 static int
583 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td )
584 {
585 bktr_ptr_t bktr;
586 int unit;
587 int result;
588
589 unit = UNIT( minor(dev) );
590
591 /* Get the device data */
592 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
593 if (bktr == NULL) {
594 /* the device is no longer valid/functioning */
595 return (ENXIO);
596 }
597
598 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
599 return( ENXIO );
600
601 /* Record that the device is now busy */
602 device_busy(devclass_get_device(bktr_devclass, unit));
603
604
605 if (bt848_card != -1) {
606 if ((bt848_card >> 8 == unit ) &&
607 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) {
608 if ( bktr->bt848_card != (bt848_card & 0xff) ) {
609 bktr->bt848_card = (bt848_card & 0xff);
610 probeCard(bktr, FALSE, unit);
611 }
612 }
613 }
614
615 if (bt848_tuner != -1) {
616 if ((bt848_tuner >> 8 == unit ) &&
617 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) {
618 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) {
619 bktr->bt848_tuner = (bt848_tuner & 0xff);
620 probeCard(bktr, FALSE, unit);
621 }
622 }
623 }
624
625 if (bt848_reverse_mute != -1) {
626 if ((bt848_reverse_mute >> 8) == unit ) {
627 bktr->reverse_mute = bt848_reverse_mute & 0xff;
628 }
629 }
630
631 if (bt848_slow_msp_audio != -1) {
632 if ((bt848_slow_msp_audio >> 8) == unit ) {
633 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff);
634 }
635 }
636
637 #ifdef BKTR_NEW_MSP34XX_DRIVER
638 if (bt848_stereo_once != 0) {
639 if ((bt848_stereo_once >> 8) == unit ) {
640 bktr->stereo_once = (bt848_stereo_once & 0xff);
641 }
642 }
643
644 if (bt848_amsound != -1) {
645 if ((bt848_amsound >> 8) == unit ) {
646 bktr->amsound = (bt848_amsound & 0xff);
647 }
648 }
649
650 if (bt848_dolby != -1) {
651 if ((bt848_dolby >> 8) == unit ) {
652 bktr->dolby = (bt848_dolby & 0xff);
653 }
654 }
655 #endif
656
657 switch ( FUNCTION( minor(dev) ) ) {
658 case VIDEO_DEV:
659 result = video_open( bktr );
660 break;
661 case TUNER_DEV:
662 result = tuner_open( bktr );
663 break;
664 case VBI_DEV:
665 result = vbi_open( bktr );
666 break;
667 default:
668 result = ENXIO;
669 break;
670 }
671
672 /* If there was an error opening the device, undo the busy status */
673 if (result != 0)
674 device_unbusy(devclass_get_device(bktr_devclass, unit));
675 return( result );
676 }
677
678
679 /*
680 *
681 */
682 static int
683 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td )
684 {
685 bktr_ptr_t bktr;
686 int unit;
687 int result;
688
689 unit = UNIT( minor(dev) );
690
691 /* Get the device data */
692 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
693 if (bktr == NULL) {
694 /* the device is no longer valid/functioning */
695 return (ENXIO);
696 }
697
698 switch ( FUNCTION( minor(dev) ) ) {
699 case VIDEO_DEV:
700 result = video_close( bktr );
701 break;
702 case TUNER_DEV:
703 result = tuner_close( bktr );
704 break;
705 case VBI_DEV:
706 result = vbi_close( bktr );
707 break;
708 default:
709 return (ENXIO);
710 break;
711 }
712
713 device_unbusy(devclass_get_device(bktr_devclass, unit));
714 return( result );
715 }
716
717
718 /*
719 *
720 */
721 static int
722 bktr_read( struct cdev *dev, struct uio *uio, int ioflag )
723 {
724 bktr_ptr_t bktr;
725 int unit;
726
727 unit = UNIT(minor(dev));
728
729 /* Get the device data */
730 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
731 if (bktr == NULL) {
732 /* the device is no longer valid/functioning */
733 return (ENXIO);
734 }
735
736 switch ( FUNCTION( minor(dev) ) ) {
737 case VIDEO_DEV:
738 return( video_read( bktr, unit, dev, uio ) );
739 case VBI_DEV:
740 return( vbi_read( bktr, uio, ioflag ) );
741 }
742 return( ENXIO );
743 }
744
745
746 /*
747 *
748 */
749 static int
750 bktr_write( struct cdev *dev, struct uio *uio, int ioflag )
751 {
752 return( EINVAL ); /* XXX or ENXIO ? */
753 }
754
755
756 /*
757 *
758 */
759 static int
760 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td )
761 {
762 bktr_ptr_t bktr;
763 int unit;
764
765 unit = UNIT(minor(dev));
766
767 /* Get the device data */
768 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
769 if (bktr == NULL) {
770 /* the device is no longer valid/functioning */
771 return (ENXIO);
772 }
773
774 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
775 return( ENOMEM );
776
777 switch ( FUNCTION( minor(dev) ) ) {
778 case VIDEO_DEV:
779 return( video_ioctl( bktr, unit, cmd, arg, td ) );
780 case TUNER_DEV:
781 return( tuner_ioctl( bktr, unit, cmd, arg, td ) );
782 }
783
784 return( ENXIO );
785 }
786
787
788 /*
789 *
790 */
791 static int
792 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot )
793 {
794 int unit;
795 bktr_ptr_t bktr;
796
797 unit = UNIT(minor(dev));
798
799 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */
800 return( -1 );
801
802 /* Get the device data */
803 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
804 if (bktr == NULL) {
805 /* the device is no longer valid/functioning */
806 return (ENXIO);
807 }
808
809 if (nprot & PROT_EXEC)
810 return( -1 );
811
812 if (offset < 0)
813 return( -1 );
814
815 if (offset >= bktr->alloc_pages * PAGE_SIZE)
816 return( -1 );
817
818 *paddr = vtophys(bktr->bigbuf) + offset;
819 return( 0 );
820 }
821
822 static int
823 bktr_poll( struct cdev *dev, int events, struct thread *td)
824 {
825 int unit;
826 bktr_ptr_t bktr;
827 int revents = 0;
828 DECLARE_INTR_MASK(s);
829
830 unit = UNIT(minor(dev));
831
832 /* Get the device data */
833 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit);
834 if (bktr == NULL) {
835 /* the device is no longer valid/functioning */
836 return (ENXIO);
837 }
838
839 LOCK_VBI(bktr);
840 DISABLE_INTR(s);
841
842 if (events & (POLLIN | POLLRDNORM)) {
843
844 switch ( FUNCTION( minor(dev) ) ) {
845 case VBI_DEV:
846 if(bktr->vbisize == 0)
847 selrecord(td, &bktr->vbi_select);
848 else
849 revents |= events & (POLLIN | POLLRDNORM);
850 break;
851 }
852 }
853
854 ENABLE_INTR(s);
855 UNLOCK_VBI(bktr);
856
857 return (revents);
858 }
859
860 #endif /* FreeBSD 4.x specific kernel interface routines */
861
862 /*****************/
863 /* *** BSDI *** */
864 /*****************/
865
866 #if defined(__bsdi__)
867 #endif /* __bsdi__ BSDI specific kernel interface routines */
868
869
870 /*****************************/
871 /* *** OpenBSD / NetBSD *** */
872 /*****************************/
873 #if defined(__NetBSD__) || defined(__OpenBSD__)
874
875 #define IPL_VIDEO IPL_BIO /* XXX */
876
877 static int bktr_intr(void *arg) { return common_bktr_intr(arg); }
878
879 #define bktr_open bktropen
880 #define bktr_close bktrclose
881 #define bktr_read bktrread
882 #define bktr_write bktrwrite
883 #define bktr_ioctl bktrioctl
884 #define bktr_mmap bktrmmap
885
886 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t,
887 vm_offset_t, vm_offset_t);
888
889 #if defined(__OpenBSD__)
890 static int bktr_probe(struct device *, void *, void *);
891 #else
892 static int bktr_probe(struct device *, struct cfdata *, void *);
893 #endif
894 static void bktr_attach(struct device *, struct device *, void *);
895
896 struct cfattach bktr_ca = {
897 sizeof(struct bktr_softc), bktr_probe, bktr_attach
898 };
899
900 #if defined(__NetBSD__)
901 extern struct cfdriver bktr_cd;
902 #else
903 struct cfdriver bktr_cd = {
904 NULL, "bktr", DV_DULL
905 };
906 #endif
907
908 int
909 bktr_probe(parent, match, aux)
910 struct device *parent;
911 #if defined(__OpenBSD__)
912 void *match;
913 #else
914 struct cfdata *match;
915 #endif
916 void *aux;
917 {
918 struct pci_attach_args *pa = aux;
919
920 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE &&
921 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 ||
922 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 ||
923 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 ||
924 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879))
925 return 1;
926
927 return 0;
928 }
929
930
931 /*
932 * the attach routine.
933 */
934 static void
935 bktr_attach(struct device *parent, struct device *self, void *aux)
936 {
937 bktr_ptr_t bktr;
938 u_long latency;
939 u_long fun;
940 unsigned int rev;
941
942 #if defined(__OpenBSD__)
943 struct pci_attach_args *pa = aux;
944 pci_chipset_tag_t pc = pa->pa_pc;
945
946 pci_intr_handle_t ih;
947 const char *intrstr;
948 int retval;
949 int unit;
950
951 bktr = (bktr_ptr_t)self;
952 unit = bktr->bktr_dev.dv_unit;
953
954 bktr->pc = pa->pa_pc;
955 bktr->tag = pa->pa_tag;
956 bktr->dmat = pa->pa_dmat;
957
958 /*
959 * map memory
960 */
961 bktr->memt = pa->pa_memt;
962 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START,
963 &bktr->phys_base, &bktr->obmemsz, NULL);
964 if (!retval)
965 retval = bus_space_map(pa->pa_memt, bktr->phys_base,
966 bktr->obmemsz, 0, &bktr->memh);
967 if (retval) {
968 printf(": couldn't map memory\n");
969 return;
970 }
971
972
973 /*
974 * map interrupt
975 */
976 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
977 pa->pa_intrline, &ih)) {
978 printf(": couldn't map interrupt\n");
979 return;
980 }
981 intrstr = pci_intr_string(pa->pa_pc, ih);
982
983 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
984 bktr_intr, bktr, bktr->bktr_dev.dv_xname);
985 if (bktr->ih == NULL) {
986 printf(": couldn't establish interrupt");
987 if (intrstr != NULL)
988 printf(" at %s", intrstr);
989 printf("\n");
990 return;
991 }
992
993 if (intrstr != NULL)
994 printf(": %s\n", intrstr);
995 #endif /* __OpenBSD__ */
996
997 #if defined(__NetBSD__)
998 struct pci_attach_args *pa = aux;
999 pci_intr_handle_t ih;
1000 const char *intrstr;
1001 int retval;
1002 int unit;
1003
1004 bktr = (bktr_ptr_t)self;
1005 unit = bktr->bktr_dev.dv_unit;
1006 bktr->dmat = pa->pa_dmat;
1007
1008 printf("\n");
1009
1010 /*
1011 * map memory
1012 */
1013 retval = pci_mapreg_map(pa, PCI_MAPREG_START,
1014 PCI_MAPREG_TYPE_MEM
1015 | PCI_MAPREG_MEM_TYPE_32BIT, 0,
1016 &bktr->memt, &bktr->memh, NULL,
1017 &bktr->obmemsz);
1018 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n",
1019 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz));
1020 if (retval) {
1021 printf("%s: couldn't map memory\n", bktr_name(bktr));
1022 return;
1023 }
1024
1025 /*
1026 * Disable the brooktree device
1027 */
1028 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED);
1029 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED);
1030
1031 /*
1032 * map interrupt
1033 */
1034 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
1035 pa->pa_intrline, &ih)) {
1036 printf("%s: couldn't map interrupt\n",
1037 bktr_name(bktr));
1038 return;
1039 }
1040 intrstr = pci_intr_string(pa->pa_pc, ih);
1041 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO,
1042 bktr_intr, bktr);
1043 if (bktr->ih == NULL) {
1044 printf("%s: couldn't establish interrupt",
1045 bktr_name(bktr));
1046 if (intrstr != NULL)
1047 printf(" at %s", intrstr);
1048 printf("\n");
1049 return;
1050 }
1051 if (intrstr != NULL)
1052 printf("%s: interrupting at %s\n", bktr_name(bktr),
1053 intrstr);
1054 #endif /* __NetBSD__ */
1055
1056 /*
1057 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if
1058 * you have more than four, then 16 would probably be a better value.
1059 */
1060 #ifndef BROOKTREE_DEF_LATENCY_VALUE
1061 #define BROOKTREE_DEF_LATENCY_VALUE 10
1062 #endif
1063 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER);
1064 latency = (latency >> 8) & 0xff;
1065
1066 if (!latency) {
1067 if (bootverbose) {
1068 printf("%s: PCI bus latency was 0 changing to %d",
1069 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE);
1070 }
1071 latency = BROOKTREE_DEF_LATENCY_VALUE;
1072 pci_conf_write(pa->pa_pc, pa->pa_tag,
1073 PCI_LATENCY_TIMER, latency<<8);
1074 }
1075
1076
1077 /* Enabled Bus Master
1078 XXX: check if all old DMA is stopped first (e.g. after warm
1079 boot) */
1080 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
1081 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
1082 fun | PCI_COMMAND_MASTER_ENABLE);
1083
1084 /* read the pci id and determine the card type */
1085 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
1086 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff;
1087
1088 common_bktr_attach(bktr, unit, fun, rev);
1089 }
1090
1091
1092 /*
1093 * Special Memory Allocation
1094 */
1095 vm_offset_t
1096 get_bktr_mem(bktr, dmapp, size)
1097 bktr_ptr_t bktr;
1098 bus_dmamap_t *dmapp;
1099 unsigned int size;
1100 {
1101 bus_dma_tag_t dmat = bktr->dmat;
1102 bus_dma_segment_t seg;
1103 bus_size_t align;
1104 int rseg;
1105 caddr_t kva;
1106
1107 /*
1108 * Allocate a DMA area
1109 */
1110 align = 1 << 24;
1111 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1112 &rseg, BUS_DMA_NOWAIT)) {
1113 align = PAGE_SIZE;
1114 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1,
1115 &rseg, BUS_DMA_NOWAIT)) {
1116 printf("%s: Unable to dmamem_alloc of %d bytes\n",
1117 bktr_name(bktr), size);
1118 return 0;
1119 }
1120 }
1121 if (bus_dmamem_map(dmat, &seg, rseg, size,
1122 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
1123 printf("%s: Unable to dmamem_map of %d bytes\n",
1124 bktr_name(bktr), size);
1125 bus_dmamem_free(dmat, &seg, rseg);
1126 return 0;
1127 }
1128 #ifdef __OpenBSD__
1129 bktr->dm_mapsize = size;
1130 #endif
1131 /*
1132 * Create and locd the DMA map for the DMA area
1133 */
1134 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) {
1135 printf("%s: Unable to dmamap_create of %d bytes\n",
1136 bktr_name(bktr), size);
1137 bus_dmamem_unmap(dmat, kva, size);
1138 bus_dmamem_free(dmat, &seg, rseg);
1139 return 0;
1140 }
1141 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) {
1142 printf("%s: Unable to dmamap_load of %d bytes\n",
1143 bktr_name(bktr), size);
1144 bus_dmamem_unmap(dmat, kva, size);
1145 bus_dmamem_free(dmat, &seg, rseg);
1146 bus_dmamap_destroy(dmat, *dmapp);
1147 return 0;
1148 }
1149 return (vm_offset_t)kva;
1150 }
1151
1152 void
1153 free_bktr_mem(bktr, dmap, kva)
1154 bktr_ptr_t bktr;
1155 bus_dmamap_t dmap;
1156 vm_offset_t kva;
1157 {
1158 bus_dma_tag_t dmat = bktr->dmat;
1159
1160 #ifdef __NetBSD__
1161 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize);
1162 #else
1163 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize);
1164 #endif
1165 bus_dmamem_free(dmat, dmap->dm_segs, 1);
1166 bus_dmamap_destroy(dmat, dmap);
1167 }
1168
1169
1170 /*---------------------------------------------------------
1171 **
1172 ** BrookTree 848 character device driver routines
1173 **
1174 **---------------------------------------------------------
1175 */
1176
1177
1178 #define VIDEO_DEV 0x00
1179 #define TUNER_DEV 0x01
1180 #define VBI_DEV 0x02
1181
1182 #define UNIT(x) (minor((x) & 0x0f))
1183 #define FUNCTION(x) (minor((x >> 4) & 0x0f))
1184
1185 /*
1186 *
1187 */
1188 int
1189 bktr_open(dev_t dev, int flags, int fmt, struct thread *td)
1190 {
1191 bktr_ptr_t bktr;
1192 int unit;
1193
1194 unit = UNIT(dev);
1195
1196 /* unit out of range */
1197 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL))
1198 return(ENXIO);
1199
1200 bktr = bktr_cd.cd_devs[unit];
1201
1202 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
1203 return(ENXIO);
1204
1205 switch (FUNCTION(dev)) {
1206 case VIDEO_DEV:
1207 return(video_open(bktr));
1208 case TUNER_DEV:
1209 return(tuner_open(bktr));
1210 case VBI_DEV:
1211 return(vbi_open(bktr));
1212 }
1213
1214 return(ENXIO);
1215 }
1216
1217
1218 /*
1219 *
1220 */
1221 int
1222 bktr_close(dev_t dev, int flags, int fmt, struct thread *td)
1223 {
1224 bktr_ptr_t bktr;
1225 int unit;
1226
1227 unit = UNIT(dev);
1228
1229 bktr = bktr_cd.cd_devs[unit];
1230
1231 switch (FUNCTION(dev)) {
1232 case VIDEO_DEV:
1233 return(video_close(bktr));
1234 case TUNER_DEV:
1235 return(tuner_close(bktr));
1236 case VBI_DEV:
1237 return(vbi_close(bktr));
1238 }
1239
1240 return(ENXIO);
1241 }
1242
1243 /*
1244 *
1245 */
1246 int
1247 bktr_read(dev_t dev, struct uio *uio, int ioflag)
1248 {
1249 bktr_ptr_t bktr;
1250 int unit;
1251
1252 unit = UNIT(dev);
1253
1254 bktr = bktr_cd.cd_devs[unit];
1255
1256 switch (FUNCTION(dev)) {
1257 case VIDEO_DEV:
1258 return(video_read(bktr, unit, dev, uio));
1259 case VBI_DEV:
1260 return(vbi_read(bktr, uio, ioflag));
1261 }
1262
1263 return(ENXIO);
1264 }
1265
1266
1267 /*
1268 *
1269 */
1270 int
1271 bktr_write(dev_t dev, struct uio *uio, int ioflag)
1272 {
1273 /* operation not supported */
1274 return(EOPNOTSUPP);
1275 }
1276
1277 /*
1278 *
1279 */
1280 int
1281 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td)
1282 {
1283 bktr_ptr_t bktr;
1284 int unit;
1285
1286 unit = UNIT(dev);
1287
1288 bktr = bktr_cd.cd_devs[unit];
1289
1290 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
1291 return(ENOMEM);
1292
1293 switch (FUNCTION(dev)) {
1294 case VIDEO_DEV:
1295 return(video_ioctl(bktr, unit, cmd, arg, pr));
1296 case TUNER_DEV:
1297 return(tuner_ioctl(bktr, unit, cmd, arg, pr));
1298 }
1299
1300 return(ENXIO);
1301 }
1302
1303 /*
1304 *
1305 */
1306 paddr_t
1307 bktr_mmap(dev_t dev, off_t offset, int nprot)
1308 {
1309 int unit;
1310 bktr_ptr_t bktr;
1311
1312 unit = UNIT(dev);
1313
1314 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */
1315 return(-1);
1316
1317 bktr = bktr_cd.cd_devs[unit];
1318
1319 if ((vaddr_t)offset < 0)
1320 return(-1);
1321
1322 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE)
1323 return(-1);
1324
1325 #ifdef __NetBSD__
1326 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1,
1327 (vaddr_t)offset, nprot, BUS_DMA_WAITOK));
1328 #else
1329 return(i386_btop(vtophys(bktr->bigbuf) + offset));
1330 #endif
1331 }
1332
1333 #endif /* __NetBSD__ || __OpenBSD__ */
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